Astronomical telescope



FIG. 1 is an isometric view of the astronomical telescope;

FIG. 2 is a back view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof; and,

FIG. 7 is a top view thereof.

The broken lines illustrate portions of the astronomical telescope and form no part of the claimed design. 

CLAIM The ornamental design for an astronomical telescope, as shown and described. 